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Jalali A. Informing evidence-based medicine for opioid use disorder using pharmacoeconomic studies. Expert Rev Pharmacoecon Outcomes Res 2024; 24:599-611. [PMID: 38696161 DOI: 10.1080/14737167.2024.2350561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 04/29/2024] [Indexed: 05/08/2024]
Abstract
INTRODUCTION The health and economic consequences of inadequately treated opioid use disorder (OUD) are substantial. Healthcare systems in the United States (US) and other countries are facing a growing healthcare crisis due to opioids. Although effective medications for OUD exist, relying solely on clinical information is insufficient for addressing the opioid crisis. AREAS COVERED In this review, the role of pharmacoeconomic studies in informing evidence-based medication treatment for OUD is discussed, with a particular emphasis on the US healthcare system, where the economic burden is significantly higher than the global average. The scope/objective of pharmacoeconomics as a distinct scientific research program is briefly defined, followed by a discussion of existing evidence informed by data from systematic reviews, in addition to a convenience sample of recently published pharmacoeconomic studies and protocols. The review also explores the need for methodological advancements in the field. EXPERT OPINION Despite the potential of pharmacoeconomic research in shaping evidence-based medicine for OUD, significant challenges limiting its real-world application remain. How to address these challenges are explored, including how to combine cost-effectiveness and budget impact analyses to address the needs of the healthcare system as a whole and specific stakeholders interested in adopting new OUD treatment strategies.
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Affiliation(s)
- Ali Jalali
- Department of Population Health Sciences, Division of Comparative Effectiveness & Outcomes Research, Joan and Sanford I. Weill Medical College of Cornell University, New York, NY, USA
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Qian G, Humphreys K, Goldhaber-Fiebert JD, Brandeau ML. Estimated effectiveness and cost-effectiveness of opioid use disorder treatment under proposed U.S. regulatory relaxations: A model-based analysis. Drug Alcohol Depend 2024; 256:111112. [PMID: 38335797 PMCID: PMC10940194 DOI: 10.1016/j.drugalcdep.2024.111112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 01/12/2024] [Accepted: 01/28/2024] [Indexed: 02/12/2024]
Abstract
AIM To assess the effectiveness and cost-effectiveness of buprenorphine and methadone treatment in the U.S. if exemptions expanding coverage for substance use disorder services via telehealth and allowing opioid treatment programs to supply a greater number of take-home doses of medications for opioid use disorder (OUD) continue (Notice of Proposed Rule Making, NPRM). DESIGN SETTING AND PARTICIPANTS Model-based analysis of buprenorphine and methadone treatment for a cohort of 100,000 individuals with OUD, varying treatment retention and overdose risk among individuals receiving and not receiving methadone treatment compared to the status quo (no NPRM). INTERVENTION Buprenorphine and methadone treatment under NPRM. MEASUREMENTS Fatal and nonfatal overdoses and deaths over five years, discounted lifetime per person QALYs and costs. FINDINGS For buprenorphine treatment under the status quo, 1.21 QALYs are gained at a cost of $19,200/QALY gained compared to no treatment; with 20% higher treatment retention, 1.28 QALYs are gained at a cost of $17,900/QALY gained compared to no treatment, and the strategy dominates the status quo. For methadone treatment under the status quo, 1.11 QALYs are gained at a cost of $17,900/QALY gained compared to no treatment. In all scenarios, methadone provision cost less than $20,000/QALY gained compared to no treatment, and less than $50,000/QALY gained compared to status quo methadone treatment. CONCLUSIONS Buprenorphine and methadone OUD treatment under NPRM are likely to be effective and cost-effective. Increases in overdose risk with take-home methadone would reduce health benefits. Clinical and technological strategies could mitigate this risk.
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Affiliation(s)
- Gary Qian
- Department of Management Science and Engineering, Stanford University, Stanford, CA, USA.
| | - Keith Humphreys
- Center for Innovation to Implementation, VA Palo Alto Health Care System, Palo Alto, CA, USA; Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | | | - Margaret L Brandeau
- Department of Management Science and Engineering, Stanford University, Stanford, CA, USA
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Singh VV, Dhawan A, Sarkar S, Mishra AK, Chadda RK. Relapse during opioid use disorder treatment: A pilot study to understand the reasons for opioid use during treatment. Ind Psychiatry J 2023; 32:361-368. [PMID: 38161454 PMCID: PMC10756605 DOI: 10.4103/ipj.ipj_87_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 02/17/2023] [Accepted: 03/23/2023] [Indexed: 01/03/2024] Open
Abstract
Background Opioid use is a cause of concern in many parts of the world. About 2.1% Indians use opioids. Opioids are also the most common drugs used by injection drug users in India. Despite various treatment strategies used to manage opioid use disorders (OUDs), relapse is common. A good treatment program would make efforts to address lapses and prevent relapse. Hence, there is a need to understand the factors associated with relapse in OUD. Method One hundred and twenty patients completed a baseline assessment that included socio-demographic details and the Maudsley Addiction Profile (MAP). They were followed up for three months and assessed using telephonic interview for opioid use. All those who relapsed were assessed using the Reasons for Relapse Questionnaire (RRQ). The patients who relapsed were compared with the patients who were abstinent. Relapse was defined as any use of opioid during follow-up. Results Forty participants relapsed during the 90 days of the study period. Relapsed patients had a greater number of conflict days with family members, used a higher amount of heroin and cannabis at baseline, were less likely to be discharged on buprenorphine, and were more likely to drop out. Participants cited mood and social reasons more often than cue/craving and unwell domains of RRQ. Conclusion Baseline treatment and prospective factors are associated with relapse in OUD. Addressing these factors can help in reducing relapse in OUD patients.
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Affiliation(s)
- Virendra V. Singh
- Department of Psychiatry, Army College of Medical Sciences and Base Hospital, Delhi Cantt, Delhi, India
| | - Anju Dhawan
- National Drug Dependence Treatment Centre, All India Institute of Medical Sciences, New Delhi, India
| | - Siddhartha Sarkar
- National Drug Dependence Treatment Centre, All India Institute of Medical Sciences, New Delhi, India
| | - Ashwani K. Mishra
- National Drug Dependence Treatment Centre, All India Institute of Medical Sciences, New Delhi, India
| | - Rakesh K. Chadda
- National Drug Dependence Treatment Centre, All India Institute of Medical Sciences, New Delhi, India
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Qian G, Rao I, Humphreys K, Owens DK, Brandeau ML. Cost-effectiveness of office-based buprenorphine treatment for opioid use disorder. Drug Alcohol Depend 2023; 243:109762. [PMID: 36621198 PMCID: PMC9852082 DOI: 10.1016/j.drugalcdep.2022.109762] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/27/2022] [Accepted: 12/29/2022] [Indexed: 12/31/2022]
Abstract
AIM To assess the effectiveness and cost-effectiveness of office-based buprenorphine treatment (OBBT) in the U.S. DESIGN SETTING AND PARTICIPANTS We performed a model-based analysis of buprenorphine treatment provided in a primary care setting for the U.S. population with OUD. INTERVENTION Buprenorphine treatment provided in a primary care setting. MEASUREMENTS Fatal and nonfatal overdoses and deaths over five years, discounted lifetime quality-adjusted life years (QALYs), costs. FINDINGS For a cohort of 100,000 untreated individuals who enter OBBT, approximately 9350 overdoses would be averted over five years; of these, approximately 900 would have been fatal. OBBT compared to no treatment would yield 1.07 incremental lifetime QALYs per person at an incremental cost of $17,000 per QALY gained when using a healthcare perspective. If OBBT is half as effective and twice as expensive as assumed in the base case, the incremental cost when using a healthcare perspective is $25,500 per QALY gained. Using a limited societal perspective that additionally includes patient costs and criminal justice costs, OBBT is cost-saving compared to no treatment even under pessimistic assumptions about efficacy and cost. CONCLUSIONS Expansion of OBBT would be highly cost-effective compared to no treatment when considered from a healthcare perspective, and cost-saving when reduced criminal justice costs are included. Given the continuing opioid crisis in the U.S., expansion of this care option should be a high priority.
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Affiliation(s)
- Gary Qian
- Department of Management Science and Engineering, Stanford University, Stanford, CA, USA.
| | - Isabelle Rao
- Department of Management Science and Engineering, Stanford University, Stanford, CA, USA
| | - Keith Humphreys
- Center for Innovation to Implementation, US Department of Veterans Affairs, VA Palo Alto Health Care System, Palo Alto, CA, USA; Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | - Douglas K Owens
- Department of Health Policy, School of Medicine, and Stanford Health Policy, Freeman-Spogli Institute for International Studies, Stanford University, Stanford, CA, USA
| | - Margaret L Brandeau
- Department of Management Science and Engineering, Stanford University, Stanford, CA, USA
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Singh VV, Dhawan A, Chadda RK, Mishra AK, Sarkar S. A Prospective Three-Months Naturalistic Follow-Up Study of Outcomes of Patients with Opioid Dependence Discharged on Buprenorphine or Oral Naltrexone. Indian J Psychol Med 2023; 45:26-32. [PMID: 36778621 PMCID: PMC9896119 DOI: 10.1177/02537176211066739] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Comparative studies of the naturalistic course of patients of opioid dependence on naltrexone and buprenorphine are likely to be helpful for clinical decision-making. The article aimed to report on the three-months naturalistic outcomes of patients discharged on naltrexone or buprenorphine from the same center. METHODS Patients with opioid dependence who were discharged on either naltrexone (n = 86) or buprenorphine (n = 30) were followed up for three months for retention in treatment. The patients were also followed up telephonically, and the Maudsley Addiction Profile was applied. RESULTS The days of retention in treatment were significantly higher in the buprenorphine group (69.5 versus 48.7 days, P = 0.009). Heroin use, pharmaceutical opioid use, injection drug use, involvement in illegal activity, and percentage of contact days in conflict with friends in the last 30 days reduced over three months in both the groups, while the physical and psychological quality of life improved in both the groups. Additionally, in the naltrexone group, smoked tobacco use, cannabis use, and percentage of contact days in conflict with family within the last 30 days reduced at three months compared to baseline. CONCLUSION With the possible limitations of choice of medication-assisted treatment for opioid dependence being determined by the patient, and prescribing related factors and sample size constraints, the study suggests that retention outcomes may vary between naltrexone and buprenorphine, though both medications may improve several patient-related parameters. However, a true head-to-head comparison of the outcomes of buprenorphine and naltrexone in a naturalistic setting may be difficult.
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Affiliation(s)
- Virendra Vikram Singh
- Dept. of Psychiatry and National Drug Dependence Treatment Centre, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Anju Dhawan
- Dept. of Psychiatry and National Drug Dependence Treatment Centre, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Rakesh K Chadda
- Dept. of Psychiatry and National Drug Dependence Treatment Centre, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Ashwani Kumar Mishra
- Dept. of Psychiatry and National Drug Dependence Treatment Centre, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Siddharth Sarkar
- Dept. of Psychiatry and National Drug Dependence Treatment Centre, All India Institute of Medical Sciences (AIIMS), New Delhi, India
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Jalali A, Tamimi RM, McPherson SM, Murphy SM. Econometric Issues in Prospective Economic Evaluations Alongside Clinical Trials: Combining the Nonparametric Bootstrap With Methods That Address Missing Data. Epidemiol Rev 2022; 44:67-77. [PMID: 36104860 PMCID: PMC10362933 DOI: 10.1093/epirev/mxac006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/09/2022] [Accepted: 09/07/2022] [Indexed: 12/29/2022] Open
Abstract
Prospective economic evaluations conducted alongside clinical trials have become an increasingly popular approach in evaluating the cost-effectiveness of a public health initiative or treatment intervention. These types of economic studies provide improved internal validity and accuracy of cost and effectiveness estimates of health interventions and, compared with simulation or decision-analytic models, have the advantage of jointly observing health and economics outcomes of trial participants. However, missing data due to incomplete response or patient attrition, and sampling uncertainty are common concerns in econometric analysis of clinical trials. Missing data are a particular problem for comparative effectiveness trials of substance use disorder interventions. Multiple imputation and inverse probability weighting are 2 widely recommended methods to address missing data bias, and the nonparametric bootstrap is recommended to address uncertainty in predicted mean cost and effectiveness between trial interventions. Although these methods have been studied extensively by themselves, little is known about how to appropriately combine them and about the potential pitfalls and advantages of different approaches. We provide a review of statistical methods used in 29 economic evaluations of substance use disorder intervention identified from 4 published systematic reviews and a targeted search of the literature. We evaluate how each study addressed missing data bias, whether the recommended nonparametric bootstrap was used, how these 2 methods were combined, and conclude with recommendations for future research.
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Affiliation(s)
- Ali Jalali
- Correspondence to Dr. Ali Jalali, Department of Population Health Sciences, Weill Cornell Medicine, 425 East 61st Street, Suite 301, New York, NY 10065 (e-mail: )
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Zangiabadian M, Golmohammadi S, Nejadghaderi SA, Zahmatkesh MM, Nasiri MJ, Sadeghian M. The effects of naltrexone on retention in treatment and being opioid-free in opioid-dependent people: A systematic review and meta-analysis. Front Psychiatry 2022; 13:1003257. [PMID: 36226100 PMCID: PMC9548642 DOI: 10.3389/fpsyt.2022.1003257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 09/08/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Opioid dependency is a chronic relapsing disorder for which different therapeutically interventions have been developed. Naltrexone is a non-selective opioid antagonist that can be utilized for maintenance therapy in opioid dependency. In this systematic review, we aimed to evaluate the effects of naltrexone on retention in treatment and being opioid-free. METHODS We systematically searched PubMed and EMBASE databases up to February 5, 2022, using the following keywords: "Naltrexone," "Substance abuse," "Drug abuse," "Opiate-related disorder," and "Opioid dependence." Studies that included opiate-dependent individuals who were treated with naltrexone and assessed retention in treatment or being opioid-free were included. Two authors independently used the Cochrane risk-of-bias tool for quality assessment. A random effect model in Comprehensive Meta-Analysis software was used for the conduction of the meta-analysis. We performed subgroup analysis to evaluate the effects of naltrexone types on outcomes. RESULTS Eighteen studies, including 2,280 participants met our inclusion criteria. The duration of treatment ranged from 21 days to 24 months. The retention in treatment with naltrexone was 63% higher than controls (odds ratio (OR): 1.64 [95% confidence interval (CI), 0.78-3.44]. The OR for being opioid-free was 1.63 (95% CI, 0.57-4.72). Injectable naltrexone was significantly effective on retention in treatment (OR 1.86; 95% CI, 1.17-2.98). CONCLUSIONS We found that naltrexone could be useful for retention in treatment and being opioid-free, however, the findings were not significant. Further high-quality and large-scale observational studies are recommended.
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Affiliation(s)
- Moein Zangiabadian
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeid Golmohammadi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Aria Nejadghaderi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Mahdi Zahmatkesh
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Javad Nasiri
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Sadeghian
- Department of Psychiatry, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Shouan A, Ghosh A, Singh SM, Basu D, Mattoo SK. Predictors of retention in the treatment for opioid dependence: A prospective, observational study from India. Indian J Psychiatry 2021; 63:355-365. [PMID: 34456348 PMCID: PMC8363890 DOI: 10.4103/psychiatry.indianjpsychiatry_448_20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 04/14/2021] [Accepted: 06/17/2021] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Literature on a longitudinal study of the determinants of treatment retention for patients with opioid dependence is limited. AIM To find out patient- and treatment-related (buprenorphine-naloxone-assisted treatment [BNX treatment] versus naltrexone treatment) predictors for retention in maintenance treatment. MATERIALS AND METHODS A total of 100 participants with opioid dependence were recruited by convenience sampling. The primary outcome was treatment retention - 3 months and 6 months postentry into maintenance treatment. Multiple assessments were done for the severity of opioid dependence and withdrawal, high-risk behavior, quality of life, and recovery capital - baseline and 3 and 6 months. The secondary outcome was to assess the change observed in the above-listed variables. RESULTS AND CONCLUSIONS Bivariate analysis across retained and the dropout groups brought out significant differences for some (type of opioids and route of administration) but not for other (age, employment, and education) patient-related factors. Multivariate analysis, adjusting for the type of maintenance treatment, rendered these associations statistically insignificant. BNX-based treatment (compared to naltrexone maintenance) was the most significant predictor of treatment retention both at the end of 3 months and 6 months. Even after controlling for the severity of opioid dependence and withdrawal, type and route of opioid use, and high-risk behavior, patients on BNX were eleven times (14 times at the end of 6 months) more likely to be retained in the treatment. BNX group had significant improvements in the domains of recovery capital, quality of life, addiction severity, and severity of opioid dependence. There is a need to scale up the BNX-assisted treatment program in India and elsewhere.
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Affiliation(s)
- Anish Shouan
- Department of Psychiatry, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Abhishek Ghosh
- Department of Psychiatry, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Shubh Mohan Singh
- Department of Psychiatry, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Debasish Basu
- Department of Psychiatry, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Surendra Kumar Mattoo
- Department of Psychiatry, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Fairley M, Humphreys K, Joyce VR, Bounthavong M, Trafton J, Combs A, Oliva EM, Goldhaber-Fiebert JD, Asch SM, Brandeau ML, Owens DK. Cost-effectiveness of Treatments for Opioid Use Disorder. JAMA Psychiatry 2021; 78:767-777. [PMID: 33787832 PMCID: PMC8014209 DOI: 10.1001/jamapsychiatry.2021.0247] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
IMPORTANCE Opioid use disorder (OUD) is a significant cause of morbidity and mortality in the US, yet many individuals with OUD do not receive treatment. OBJECTIVE To assess the cost-effectiveness of OUD treatments and association of these treatments with outcomes in the US. DESIGN AND SETTING This model-based cost-effectiveness analysis included a US population with OUD. INTERVENTIONS Medication-assisted treatment (MAT) with buprenorphine, methadone, or injectable extended-release naltrexone; psychotherapy (beyond standard counseling); overdose education and naloxone distribution (OEND); and contingency management (CM). MAIN OUTCOMES AND MEASURES Fatal and nonfatal overdoses and deaths throughout 5 years, discounted lifetime quality-adjusted life-years (QALYs), and costs. RESULTS In the base case, in the absence of treatment, 42 717 overdoses (4132 fatal, 38 585 nonfatal) and 12 660 deaths were estimated to occur in a cohort of 100 000 patients over 5 years, and 11.58 discounted lifetime QALYs were estimated to be experienced per person. An estimated reduction in overdoses was associated with MAT with methadone (10.7%), MAT with buprenorphine or naltrexone (22.0%), and when combined with CM and psychotherapy (range, 21.0%-31.4%). Estimated deceased deaths were associated with MAT with methadone (6%), MAT with buprenorphine or naltrexone (13.9%), and when combined with CM, OEND, and psychotherapy (16.9%). MAT yielded discounted gains of 1.02 to 1.07 QALYs per person. Including only health care sector costs, methadone cost $16 000/QALY gained compared with no treatment, followed by methadone with OEND ($22 000/QALY gained), then by buprenorphine with OEND and CM ($42 000/QALY gained), and then by buprenorphine with OEND, CM, and psychotherapy ($250 000/QALY gained). MAT with naltrexone was dominated by other treatment alternatives. When criminal justice costs were included, all forms of MAT (with buprenorphine, methadone, and naltrexone) were associated with cost savings compared with no treatment, yielding savings of $25 000 to $105 000 in lifetime costs per person. The largest cost savings were associated with methadone plus CM. Results were qualitatively unchanged over a wide range of sensitivity analyses. An analysis using demographic and cost data for Veterans Health Administration patients yielded similar findings. CONCLUSIONS AND RELEVANCE In this cost-effectiveness analysis, expanded access to MAT, combined with OEND and CM, was associated with cost-saving reductions in morbidity and mortality from OUD. Lack of widespread MAT availability limits access to a cost-saving medical intervention that reduces morbidity and mortality from OUD. Opioid overdoses in the US likely reached a record high in 2020 because of COVID-19 increasing substance use, exacerbating stress and social isolation, and interfering with opioid treatment. It is essential to understand the cost-effectiveness of alternative forms of MAT to treat OUD.
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Affiliation(s)
- Michael Fairley
- Department of Management Science and Engineering, Stanford University, Stanford, California
| | - Keith Humphreys
- Center for Innovation to Implementation, US Department of Veterans Affairs, VA Palo Alto Health Care System, Palo Alto, California,Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, California
| | - Vilija R. Joyce
- Veterans Affairs Health Services Research and Development Health Economics Resource Center, US Department of Veterans Affairs, VA Palo Alto Health Care System, Palo Alto, California
| | - Mark Bounthavong
- Veterans Affairs Health Services Research and Development Health Economics Resource Center, US Department of Veterans Affairs, VA Palo Alto Health Care System, Palo Alto, California
| | - Jodie Trafton
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, California,Veterans Affairs Program Evaluation and Resource Center, Office of Mental Health and Suicide Prevention, VA Central Office, US Department of Veterans Affairs, Palo Alto, California
| | - Ann Combs
- Veterans Affairs Program Evaluation and Resource Center, Office of Mental Health and Suicide Prevention, VA Central Office, US Department of Veterans Affairs, Palo Alto, California
| | - Elizabeth M. Oliva
- Center for Innovation to Implementation, US Department of Veterans Affairs, VA Palo Alto Health Care System, Palo Alto, California
| | - Jeremy D. Goldhaber-Fiebert
- Stanford Health Policy, Centers for Health Policy and Primary Care and Outcomes Research, Stanford University, Stanford, California
| | - Steven M. Asch
- Center for Innovation to Implementation, US Department of Veterans Affairs, VA Palo Alto Health Care System, Palo Alto, California,Department of Medicine, Stanford University, Stanford, California
| | - Margaret L. Brandeau
- Department of Management Science and Engineering, Stanford University, Stanford, California
| | - Douglas K. Owens
- Center for Innovation to Implementation, US Department of Veterans Affairs, VA Palo Alto Health Care System, Palo Alto, California,Stanford Health Policy, Centers for Health Policy and Primary Care and Outcomes Research, Stanford University, Stanford, California,Department of Medicine, Stanford University, Stanford, California
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Piske M, Thomson T, Krebs E, Hongdilokkul N, Bruneau J, Greenland S, Gustafson P, Karim ME, McCandless LC, Maclure M, Platt RW, Siebert U, Socías ME, Tsui JI, Wood E, Nosyk B. Comparative effectiveness of buprenorphine-naloxone versus methadone for treatment of opioid use disorder: a population-based observational study protocol in British Columbia, Canada. BMJ Open 2020; 10:e036102. [PMID: 32912944 PMCID: PMC7482450 DOI: 10.1136/bmjopen-2019-036102] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION Despite a recent meta-analysis including 31 randomised controlled trials comparing methadone and buprenorphine for the treatment of opioid use disorder, important knowledge gaps remain regarding the long-term effectiveness of different treatment modalities across individuals, including rigorously collected data on retention rates and other treatment outcomes. Evidence from real-world data represents a valuable opportunity to improve personalised treatment and patient-centred guidelines for vulnerable populations and inform strategies to reduce opioid-related mortality. Our objective is to determine the comparative effectiveness of methadone versus buprenorphine/naloxone, both overall and within key populations, in a setting where both medications are simultaneously available in office-based practices and specialised clinics. METHODS AND ANALYSIS We propose a retrospective cohort study of all adults living in British Columbia receiving opioid agonist treatment (OAT) with methadone or buprenorphine/naloxone between 1 January 2008 and 30 September 2018. The study will draw on seven linked population-level administrative databases. The primary outcomes include retention in OAT and all-cause mortality. We will determine the effectiveness of buprenorphine/naloxone vs methadone using intention-to-treat and per-protocol analyses-the former emulating flexible-dose trials and the latter focusing on the comparison of the two medication regimens offered at the optimal dose. Sensitivity analyses will be used to assess the robustness of results to heterogeneity in the patient population and threats to internal validity. ETHICS AND DISSEMINATION The protocol, cohort creation and analysis plan have been approved and classified as a quality improvement initiative exempt from ethical review (Providence Health Care Research Institute and the Simon Fraser University Office of Research Ethics). Dissemination is planned via conferences and publications, and through direct engagement and collaboration with entities that issue clinical guidelines, such as professional medical societies and public health organisations.
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Affiliation(s)
- Micah Piske
- Epidemiology and Population Health Program, BC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada
| | - Trevor Thomson
- Epidemiology and Population Health Program, BC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada
| | - Emanuel Krebs
- Epidemiology and Population Health Program, BC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada
| | - Natt Hongdilokkul
- Epidemiology and Population Health Program, BC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada
| | - Julie Bruneau
- Centre hospitalier de l'Université de Montréal, CRCHUM, Montreal, Quebec, Canada
- Département de médecine de famille et de médecine d'urgence, Universite de Montreal, Montreal, Quebec, Canada
| | - Sander Greenland
- Department of Epidemiology and Department of Statistics, UCLA, Los Angeles, California, USA
| | - Paul Gustafson
- Department of Statistics, UBC, Vancouver, British Columbia, Canada
| | - M Ehsan Karim
- School of Population and Public Health, UBC, Vancouver, British Columbia, Canada
- Providence Health Care Research Institute, Centre for Health Evaluation and Outcome Sciences, Vancouver, British Columbia, Canada
| | - Lawrence C McCandless
- Department of Statstics and Actuarial Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Malcolm Maclure
- Department of Anesthesiology, Pharmacology and Therapeutics, UBC, Vancouver, British Columbia, Canada
| | - Robert W Platt
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Quebec, Canada
- Centre for Clinical Epidemiology, Lady Davis Institute for Medical Research, Montreal, Quebec, Canada
| | - Uwe Siebert
- Department of Health Policy and Management, Harvard University T H Chan School of Public Health, Boston, Massachusetts, USA
- Department of Public Health, Health Services Research and Health Technology Assessment, UMIT - University for Health Sciences, Medical Informatics and Technology, Tirol, Austria
- Oncotyrol - Center for Personalized Cancer Medicine, Innsbruck, Austria
| | - M Eugenia Socías
- BC Centre on Substance Use, Vancouver, British Columbia, Canada
- Department of Medicine, Faculty of Medicine, UBC, Vancouver, Briitish Columbia, Canada
| | - Judith I Tsui
- Department of Medicine, Section of General Internal Medicine, University of Washington, Seattle, Washington, USA
| | - Evan Wood
- BC Centre on Substance Use, Vancouver, British Columbia, Canada
- Department of Medicine, Faculty of Medicine, UBC, Vancouver, Briitish Columbia, Canada
| | - Bohdan Nosyk
- Epidemiology and Population Health Program, BC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
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11
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Ku Abd Rahim KN, Kamaruzaman HF, Dahlui M, Wan Puteh SE. From Evidence to Policy: Economic Evaluations of Healthcare in Malaysia: A Systematic Review. Value Health Reg Issues 2019; 21:91-99. [PMID: 31698173 DOI: 10.1016/j.vhri.2019.09.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 07/26/2019] [Accepted: 09/09/2019] [Indexed: 10/25/2022]
Abstract
OBJECTIVE To identify and describe the various economic evaluation studies in Malaysia and to determine the range of incremental cost-effectiveness ratios (ICERs) as reported in these studies. METHODS A comprehensive search of the scientific electronic databases was conducted (Medline, EBM Reviews, Embase, and hand search) to identify all published economic evaluation studies related to Malaysian healthcare. Two researchers assessed the quality of selected studies using the Critical Appraisal Skills Programme (CASP) checklist and Quality of Health Economic Studies instrument. The assessment was also reviewed by expert members of the Technical Advisory Committee of Health Technology Economic Evaluations (TACHTEE). RESULTS A total of 64 full-text articles were assessed for eligibility and included in this systematic review. Thirty studies were partial economic evaluations; the full economic evaluations included 17 cost-effectiveness analyses and 17 cost-utility analyses. From all the reported ICERs, the majority (68%) were categorized as highly cost-effective (ICER of less than 1 gross domestic product (GDP) per capita per quality-adjusted life-years or disability-adjusted life-years gained). CONCLUSION This review identifies information gaps and loopholes in health economics research in Malaysia. Additionally, this study provides the information that the majority of published interventions in Malaysia fell within the cost-effectiveness threshold of 1 GDP per capita per quality-adjusted life-years or disability-adjusted life-years gained.
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Affiliation(s)
- Ku Nurhasni Ku Abd Rahim
- Malaysian Health Technology Assessment Section, Medical Development Division, Ministry of Health Malaysia, Federal Territory of Putrajaya, Malaysia
| | - Hanin Farhana Kamaruzaman
- Malaysian Health Technology Assessment Section, Medical Development Division, Ministry of Health Malaysia, Federal Territory of Putrajaya, Malaysia.
| | - Maznah Dahlui
- Centre of Population Health, Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia; Faculty of Public Health, Airlangga University, Surabaya, East Java, Indonesia
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12
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Abstract
BACKGROUND The economic costs associated with opioid misuse are immense. Effective interventions for opioid use disorders are available; however, given the scarce resources faced by substance use treatment providers and payers of all kinds, evidence of effectiveness is not always sufficient to encourage adoption of a given therapy-nor should it be. Economic evaluations can provide evidence that will help stakeholders efficiently allocate their resources. OBJECTIVE The purpose of this study was to review the literature on economic evaluations of opioid use disorder interventions. METHODS We performed a systematic review of the major electronic databases from inception until August 2015. A sensitive approach was used to ensure a comprehensive list of relevant articles. Given the quality of the existing reviews, we narrowed our search to studies published since 2007. The Drummond checklist was used to evaluate and categorize economic evaluation studies according to their quality. RESULTS A total of 98 articles were identified as potentially relevant to the current study. Of these 98 articles, half (n = 49) were included in this study. Six of the included articles were reviews. The remaining 43 articles reported economic evaluation studies of interventions for opioid use disorders. In general, the evidence on methadone maintenance therapy (MMT) supports previous findings that MMT is an economically advantageous opioid use disorder therapy. The economic literature comparing MMT with other opioid use disorder pharmacotherapies is limited, as is the literature on other forms of therapy. CONCLUSION With the possible exception of MMT, additional high-quality economic evaluations are needed in order to assess the relative value of existing opioid use disorder interventions.
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Affiliation(s)
- Sean M Murphy
- Department of Health Policy and Administration, Washington State University, P.O. Box 1495, Spokane, WA, 99210-1495, USA.
| | - Daniel Polsky
- Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA, USA
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13
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Brown SE, Wickersham JA, Pelletier AR, Marcus RM, Erenrich R, Kamarulzaman A, Altice FL. Attitudes toward medication-assisted treatment among fishermen in Kuantan, Malaysia, who inject drugs. J Ethn Subst Abuse 2016; 16:363-379. [PMID: 27404914 DOI: 10.1080/15332640.2016.1196632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Fishermen who inject drugs represent an understudied group at high risk for HIV in Malaysia. This study describes fishing, drug use, and attitudes toward medication-assisted treatment (MAT) for opioid use disorders. Thirty-four male ethnic Malay fishermen completed semistructured interviews analyzed by content analysis. Analysis revealed four themes surrounding opioids, which they called ubat ("medicine"): (a) the fishing lifestyle facilitating substance use, (b) previous unsuccessful attempts to quit, (c) categorizing substances as haram or halal, and (d) attitudes toward MAT. Fishermen's environment permits substance use, including injecting drugs on boats. Fishermen expressed more positive attitudes toward methadone and negative attitudes toward buprenorphine.
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Affiliation(s)
| | - Jeffrey A Wickersham
- a Yale University School of Medicine , New Haven , Connecticut.,b University of Malaya , Kuala Lumpur , Malaysia
| | | | | | | | - Adeeba Kamarulzaman
- a Yale University School of Medicine , New Haven , Connecticut.,b University of Malaya , Kuala Lumpur , Malaysia
| | - Frederick L Altice
- a Yale University School of Medicine , New Haven , Connecticut.,b University of Malaya , Kuala Lumpur , Malaysia.,e Yale University School of Public Health , New Haven , Connecticut
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14
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Timko C, Schultz NR, Cucciare MA, Vittorio L, Garrison-Diehn C. Retention in medication-assisted treatment for opiate dependence: A systematic review. J Addict Dis 2015; 35:22-35. [PMID: 26467975 DOI: 10.1080/10550887.2016.1100960] [Citation(s) in RCA: 309] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Retention in medication-assisted treatment among opiate-dependent patients is associated with better outcomes. This systematic review (55 articles, 2010-2014) found wide variability in retention rates (i.e., 19%-94% at 3-month, 46%-92% at 4-month, 3%-88% at 6-month, and 37%-91% at 12-month follow-ups in randomized controlled trials), and identified medication and behavioral therapy factors associated with retention. As expected, patients who received naltrexone or buprenorphine had better retention rates than patients who received a placebo or no medication. Consistent with prior research, methadone was associated with better retention than buprenorphine/naloxone. And, heroin-assisted treatment was associated with better retention than methadone among treatment-refractory patients. Only a single study examined retention in medication-assisted treatment for longer than 1 year, and studies of behavioral therapies may have lacked statistical power; thus, studies with longer-term follow-ups and larger samples are needed. Contingency management showed promise to increase retention, but other behavioral therapies to increase retention, such as supervision of medication consumption, or additional counseling, education, or support, failed to find differences between intervention and control conditions. Promising behavioral therapies to increase retention have yet to be identified.
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Affiliation(s)
- Christine Timko
- a Center for Innovation to Implementation, Veterans Affairs Palo Alto Health Care System , Palo Alto , California , USA.,b Department of Psychiatry and Behavioral Sciences , Stanford University School of Medicine , Stanford , California , USA
| | - Nicole R Schultz
- c Department of Psychology , Auburn University , Auburn , Alabama , USA
| | - Michael A Cucciare
- d Center for Mental Healthcare and Outcomes Research, Central Arkansas Veterans Affairs Healthcare System , North Little Rock , Arkansas , USA.,e VA South Central (VISN 16) Mental Illness Research, Education, and Clinical Center, Central Arkansas Veterans Healthcare System , North Little Rock , Arkansas , USA.,f Department of Psychiatry , University of Arkansas for Medical Sciences , Little Rock , Arkansas , USA
| | - Lisa Vittorio
- g Research Service, Veterans Affairs Boston Heathcare System , Brockton , Massachusetts , USA
| | - Christina Garrison-Diehn
- a Center for Innovation to Implementation, Veterans Affairs Palo Alto Health Care System , Palo Alto , California , USA.,b Department of Psychiatry and Behavioral Sciences , Stanford University School of Medicine , Stanford , California , USA.,h Geriatric Research, Education, and Clinical Center, Veterans Affairs Palo Alto Health Care System , Palo Alto , California , USA
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15
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Abstract
This paper is the thirty-fifth consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2012 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior (Section 2), and the roles of these opioid peptides and receptors in pain and analgesia (Section 3); stress and social status (Section 4); tolerance and dependence (Section 5); learning and memory (Section 6); eating and drinking (Section 7); alcohol and drugs of abuse (Section 8); sexual activity and hormones, pregnancy, development and endocrinology (Section 9); mental illness and mood (Section 10); seizures and neurologic disorders (Section 11); electrical-related activity and neurophysiology (Section 12); general activity and locomotion (Section 13); gastrointestinal, renal and hepatic functions (Section 14); cardiovascular responses (Section 15); respiration and thermoregulation (Section 16); and immunological responses (Section 17).
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, Flushing, NY 11367, United States.
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